Milk made history as the first openly gay man to hold political office in California when he was elected to the San Francisco Board of Supervisors in 1977. He was shot and killed, along with San Francisco mayor George Moscone, on Nov. 27, 1978.

Milk will be the first openly LGBT elected official to be featured on a U.S. stamp.

The stamp features a black and white photo of Milk, and will be issued on May 22, 2014 (Harvey Milk Day) in locations yet to be determined. Both Washington, D.C., and San Francisco are potential first-day cities, according to Linns.